30, June 2022

ESA Open Invitation to Tender: 1-11399
Open Date: 28/06/2022 16:13 CEST
Closing Date: 06/09/2022 13:00 CEST

Many science missions require very stable conditions to allow very precise measurements, e.g. voltage ripple as low as 1 ppm and frequency stability below 50 ppm. Moreover both thermal and electrical stability are closely linked, as e.g. voltage variations will subsequently create temperature variations through the heaters. Temperature stability in the order of mK for example is expected to require voltage stability in the order 1/10^5 or 1/10^6.To accommodate these needs they need to be considered in the fundamental design of power systems. Studying and trading-off design implementations for power quality and frequency stability of intentional output on user outlets and unintentional spurious emissions on input and output interfaces will allow to identify and define the building blocks required. This will enable innovated power systems with improve stability performance and reduce future development time for specific applications.Apart from the identification and selection of suitable components, and the bread-boarding and proto-typing of an ultra-stable converter design, also the definition of an efficient verification technique is important.With an existing and verified converter proto-type as a basic building block, it will then become possible to define an extremely stable electrical architecture consisting of the power sub-system and the various power users or even voltage reference sources.This activity encompasses the following tasks:- Identification and selection of components for ultra-stable DC/DC converters- Identification and design of converter topologies for ultra-stable converter- Bread-boarding of a ultra-stable converter- Definition and implementation of efficient stability verification techniques- Definition of electrical architecture using developed converter bread-board as basic building blockBreadboard converter (TRL4) will be needed as technology demonstrator and to serve as building block for specific applications.

Directorate: Directorate of Tech, Eng. Quality
Estabilishment: ESTEC
ECOS Required: No
Classified: No
Price Range: 200-500 KEURO
Authorised Contact Person: Christophe Rene R. Seynaeve
Initiating Service: TEC-EPM
IP Measure: N/A
Prog. Reference: E/0901-01 – Technology Developme
Tender Type: Open Competition
Technology Keywords: 3-D-II-Specific Power Supplies
Products Keywords: 2-J-8.1-f-Other

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